How much Insulation do you need?

13 June 2023

The amount of insulation that is required varies by region and whether it is a new build, rental or an owner-occupied home.

From May 2023, the New Zealand Building Code raised the minimum insulation levels required in new homes. These changes are significant as New Zealand has fallen far behind international standards. We're here to help you understand what’s changed so you can check if your existing home has enough.

What is R-Value?

Insulation effectiveness is measured in terms of its R-Value or thermal resistance. The higher the R-Value the better thermal resistance the product will provide.

So …. What R-Value of insulation do you need?

Historically, many older homes have had inadequate insulation, leading to cold, uncomfortable spaces. Previously, the minimum ceiling insulation required in new homes required a construction R-Value between R2.9 and R3.3, depending on the climate zone. The amount of insulation that is required now varies not only by region but also whether it is a new build, rental or an owner-occupied home.

How Much Insulation

What can you do?

  1. Check the Thickness of Your Current Insulation: Many homes built between 1995 and 2005 have insulation but nowhere near enough. So take a moment to inspect your insulation and measure its thickness. If it’s less than 18cm thick it may not be keeping you warm enough.
  2. Consider Adding Another Layer: Adding another layer of insulation can significantly improve the thermal performance of your home, enhancing comfort and reducing energy costs.

At Brightr, we specialise in insulation solutions to your specific needs. Our range of polyester and fibreglass insulation products let you choose the option that best suits your requirements.

If you feel you don’t have enough insulation, contact us today and book a free insulation check.

Let's Chat

We give advice and quotes on a range of products to make your home or investment property warmer, healthier and more energy efficient. Contact our Brightr team who’ll take you through how improving your property can be made easy.

Hate filling in forms?

Call us on 0800 888 766